Instead of using the tried-and-tested hollow book or under-the-mattress trick, hide your valuables right there in plain sight—passwords on a mirror, headphones in a glass of OJ, and credit cards within a pile of paperwork.

The idea comes via designer YiTing Cheng, who says:

"This project is about concealing valuables, secrets, bad habits and personal information in our workplaces. Here, hidden spaces/messages were created within 8 general objects such as wood boards, lamps and disposable coffee cups... How? Utilize stereotypes and visual camouflage. We make judgments based mainly on our experiences and what we see. This dependency on visual information can create large blind spots. Thus, usual stereotypes of how we perceive solid, transparency and lighting are employed in this project to play with notions of 'solid and void', and 'true and false'."

I do love the idea of hiding things right there under your nose, though it would mean keeping the house perpetually messy. Though anyone who visits my house might wonder why I see a problem with that... [YiTing Cheng via Core77]